Catuvellauni

The Catuvellauni were a Celtic tribal state which existed in southeastern England before the Roman invasion of Britannia in 43 AD. The bordered the Iceni and the Corieltauni to the north, to the east by the Trinovantes, the Dobunni and Atrebates in the west, and the Regnenses and Cantiaci in the south; Verlamium (St. Albans) served as their capital. In 43 AD, the leader of the Atrebates appealed to the Roman emperor Claudius for support against the expansionist Catuvellauni, and the Romans killed their king Guiderius early on into the invasion. That same year, they defeated their new king Caratacus at the Battle of the Medway, and, in 50 AD, they captured Caratacus and had him executed. The Catuvellauni then became Roman subjects, helping with the building of Hadrian's Wall in Scotland.